Javascript:location.hostname 和 document.domain 之间的区别？

Question

使用 location.hostname 和 document.domain 有什么区别？

我认为带示例的解释会有所帮助。

Answer 1

document.domain 似乎是一个只读 属性，但在 Mozilla 中除外，它允许您更改用于同源策略的域的值的(例如)AJAX 请求而不实际更新页面。

这方面的限制是同源策略的相同规则。

至少这是我对MDC docs for document.domain的理解.

来自文档:

Gets/sets the domain portion of the origin of the current document, as used by the same origin policy.

...

In the DOM HTML specification, this property is listed as being read-only. However, Mozilla will let you set it to a superdomain of the current value, constrained by its base domain. For example, on developer.mozilla.org it is possible to set it to "mozilla.org" but not "mozilla.com" or "org".

尝试在控制台中将 document.domain 和 window.location.hostname 更新为新值，然后查看差异。